J.J. Blair wrote on Wed, 27 February 2008 21:16 |
Replacing the tube with a high grade Telefunken EC92 should improve the noise floor, but I'm not sure that it will improve the sound quality. |
J.J. Blair wrote on Thu, 28 February 2008 05:16 |
Replacing the tube with a high grade Telefunken EC92 should improve the noise floor, but I'm not sure that it will improve the sound quality. |
Oliver Archut wrote on Mon, 03 March 2008 03:21 |
...most of all replacing the crummy PSU of the UM92. |
Oliver Archut wrote on Mon, 03 March 2008 04:21 |
The UM92 was build upon request of the former Gefell US distributor G-Prime. However it was nothing else than a slightly modified UM57, only difference was the output x-former that was taken from the MV amplifiers. Aside the low grade metal composition, the core was/is not able to get any resolution an M7 requires. |